Operating and Maintenance Manual
PAPI 400
8
5. Installation
5.1 Location
The location of PAPI is as per ICAO as following figure 5-1. The distance of PAPI system
from the threshold will be determined by approach slope angle, possible obstacle in
approach zone, accordance ILS system, most demanding aircraft...etc. For more
information, please refer to related ICAO regulation.
Fig.5-1 Location and signal presentation
(Unit: meter)
5.1.1 The system shall be located on the left side of the runway from the approach end but
in the event of site problem, such as conflicts with runways or taxiways, that may be
located the right side of the runway. As for signal display of the system for pilot, please
refer to above Fig. 5-1.
5.2 Mounting
5.2.1 The following concrete plinth is recommended. Light unit with frangible coupling shall
be constructed on concrete slab (concrete plinth) having ground level. The
dimensional information of concrete plinth and location of base plate of PAPI unit is as
following Fig. 5-2. But, please note this can be changed according to local site
situation.
